There are 3 kinds of popular sunset lamp for you to choose:
1. With smart app, controlled by the Bluetooth function of your phone, you need to download the app. With music rhythm and timing function. You can adjust the color or dime the brightness on your phone. There is also an IR remote which can also control the light.
2. With IR remote and 4 color filters, more colors can be created with the help of filters.
3. No remote or app, you can change colors by changing filters. There are at least 4 colors you can get.